Con-Way ( CNW) ($37.70 vs. $31.36 on Jan. 16) -- has been downgraded to sell from hold and traded to a year to date high at $38.25 on Thursday. My monthly value level is $26.11 with a weekly pivot at $38.22 and semiannual risky level at $39.30. This stock should be removed from investors' portfolios.

CSX ( CSX) ($24.02 vs. $20.78 on Jan. 16) -- has been downgraded to hold from buy and traded to a year to date high at $24.27 on Friday. My monthly value level is $20.76 with a quarterly pivot at $22.31 and weekly risky level at $24.82. Reduce positions on strength to the risky level.

FedEx ( FDX) ($109.07 vs. $98.67 on Jan. 16) -- has been downgraded to hold from buy and traded to a multi-year high at $109.66 on March 11. My monthly value level is $96.86 with a semiannual pivot at $103.76 and weekly risky level at $112.47. Reduce positions on strength to the risky level.

JB Hunt Transport ( JBHT) ($74.00 vs. $60.90 on Jan. 16) -- has been downgraded to sell from buy and traded to an all-time high at $74.93 on Thursday. My semiannual value level is $64.28 with a weekly risky level at $75.81. Time to book profits and move on down the road.

Norfolk Southern ( NSC) ($75.62 vs. $65.46 on Jan. 16) -- has been downgraded to sell from buy and traded to a year to date high at $75.71 on March 6. My quarterly value level is $71.18 with an annual pivot at $75.90 and weekly risky level at $78.33. Time to book profits before this investment derails.

If you liked this article you might like

Jim Cramer -- Transports Are the Ugliest Part of the Market Right Now

Knight Transportation to Accelerate Buying as Trucking Hits Brakes

As the Trucking Industry Slows, Knight Likely to Accelerate

American Airlines (AAL) Stock Prepared for Takeoff

Jim Cramer's 'Mad Money' Recap: 5 Groups You Once Loved but Now Hate